Through-wall suite of closed isolator

Abstract

The through-wall suite comprises a through-wall pipe, a sanitary flange pipe and a clamping piece, the through-wall pipe is of an integrally-formed hollow tubular structure and comprises a through-wall pipe body and an isolation disc in the middle, the isolation disc is provided with a first disc face and a second disc face, and the first disc face and the second disc face are different in diameter. The periphery of the second disc surface is sleeved with a circular ring; one end of the sanitary flange pipe is an interface end matched with the through-wall pipe, and the other end of the sanitary flange pipe is a flange end; the clamping piece is of an opening and closing type structure and comprises a hinging part and an opening locking part, and a circumferential clamping area is formed in the clamping piece. According to the through-wall suite, through the three-layer clamping matching structure of the isolation disc and the design of the opening and closing type clamping piece, rapid pipeline connection is achieved on the premise that the leakproofness of the isolator is kept, and meanwhile the circular ring provides structural support for the flexible through-wall pipe to prevent deformation; the problems that in the prior art, butt joint of isolator pipelines is difficult, and gaps are prone to being generated when a hose penetrates through a wall are effectively solved, and the sealing performance and operation convenience are ensured.

Description

Technical Field

[0001] This utility model relates to the field of medical device sealing connection technology, and in particular to a through-wall kit for a closed isolator. Background Technology

[0002] In biopharmaceutical, medical device manufacturing, and laboratory research, isolators are widely used as essential aseptic devices in environments requiring strict environmental control. Isolators ensure the asepticity and safety of internal operations by creating a completely sealed space isolated from the external environment. In practical applications, it is often necessary to transfer liquids, gases, or other media between different chambers of the isolator or between the inside and outside of the isolator. This necessitates the use of specialized through-wall connection devices to achieve a sealed connection of the piping system. These through-wall connection devices must not only ensure a tight seal but also meet pressure resistance requirements, while also facilitating installation and maintenance.

[0003] In existing isolator through-wall connection technologies, when a pipeline connection needs to be established between sealed chambers, fixed through-wall joints are typically used, or complex sealing treatments are required during installation. For example, some designs use welding or threaded connections to directly fix the pipeline to the isolator wall. However, this traditional connection method has the following technical problems:

[0004] First, when a complex piping system, including peristaltic pumps and venting devices, is already installed inside the isolator, these devices and pipes cannot be moved or repositioned as a whole, making subsequent pipe connections extremely difficult. Especially when establishing a connection between two already assembled chambers, existing technology cannot complete the pipe connection while maintaining the isolator's airtightness.

[0005] Secondly, material transfer typically relies on hoses or other flexible materials for connection. However, when hoses pass directly through pre-drilled holes in the wall, their flexibility makes them prone to deformation, creating gaps between the hose and the hole wall. These gaps can cause cross-flow of air between the two spaces, thereby disrupting their respective clean environments or interfering with existing environmental control strategies, adversely affecting the production process.

[0006] In addition, existing through-wall connection methods often require opening the isolator during installation and maintenance, which not only disrupts the sterile environment but also increases the complexity and time cost of operation.

[0007] Therefore, how to design a pipeline connection that can ensure sealing performance, achieve quick and convenient connection without damaging the sealed environment of the isolator, and ensure the structural strength and stability of the connection parts is a technical problem that urgently needs to be solved in the current wall connection technology of closed isolators. Utility Model Content

[0008] The technical problem to be solved by this utility model is to address the issues in existing closed-type isolator wall connection technology, such as the inability to complete pipeline connection while maintaining airtightness when a complex pipeline system is installed inside the isolator, and the easy deformation and gaps caused by the direct penetration of the flexible hose through the wall, which leads to cross-flow of air. The present invention provides a wall-penetrating kit for a closed-type isolator that can achieve a quick sealing connection and has a stable and reliable structure.

[0009] The technical solution adopted by this utility model to solve its technical problem is:

[0010] A wall-penetrating kit for a closed isolator includes:

[0011] The through-wall pipe is a hollow tubular structure formed in one piece, which runs through the axial direction. The through-wall pipe includes a through-wall pipe body and an isolation disc formed in one piece in the middle of the through-wall pipe body. The isolation disc is arranged perpendicular to the axial direction of the through-wall pipe body. The isolation disc has a first disc surface and a second disc surface arranged opposite to it. The diameter of the first disc surface is larger than the diameter of the second disc surface. A ring is sleeved on the outer periphery of the second disc surface.

[0012] The sanitary flange pipe is a one-piece molded cylindrical body that extends axially. One end is a disc-shaped interface end, and the other end is a flange end. The interface end fits against the first disc surface of the through-wall pipe, and the through-wall pipe body extends into the interior of the cylindrical body.

[0013] The clamping member has an openable structure, including a hinged part and an open locking part. The interior of the clamping member forms a circumferential clamping area that matches the outer periphery of the interface end, the first disk surface, and the second disk surface with an annulus.

[0014] Preferably, the ring is a stainless steel ring that fits tightly around the outer periphery of the second disc surface.

[0015] Preferably, the outer wall of the interface end of the sanitary flange pipe is provided with positioning ribs extending in the circumferential direction.

[0016] Preferably, the flange end is disc-shaped and located at one axial end of the cylindrical body, with multiple locking teeth on its disc surface.

[0017] Preferably, the hinge portion is located on one side of the clamping member, and the opening locking portion is located on the other side of the clamping member, with the opening locking portion having a rotating threaded fastener.

[0018] Preferably, the clamping member has a trapezoidal groove structure inside.

[0019] Preferably, the through-wall pipe is made of flexible material.

[0020] The beneficial effects of this utility model include the following:

[0021] By setting an isolation disc in the middle of the through-wall pipe body and fitting a ring around the outer circumference of the second disc with a smaller diameter, a stable three-layer clamping structure is formed. Combined with the circumferential clamping area design of the opening and closing clamping component, a reliable sealed connection is achieved between the sanitary flange pipe interface end, the first disc surface of the through-wall pipe, and the second disc surface with the ring. This effectively solves the problem that the pipe connection cannot be completed in a closed environment after a complex piping system has been assembled inside the isolator, and significantly improves the convenience of installation and the airtightness of the system.

[0022] By adopting a through-wall pipe structure design with an isolation disc, especially the annular configuration on the outer circumference of the second disc, combined with clamping components, uniform compression and reliable sealing of the through-wall pipe and sanitary flange pipe are achieved. This provides necessary structural support for the through-wall pipe made of flexible material, prevents deformation of the pipe body at the wall penetration point, ensures a tight fit between the through-wall pipe and the wall hole wall, effectively solves the problem of cross-flow of air caused by gaps between two sealed spaces, and ensures the independence of the clean environment of each chamber. Attached Figure Description

[0023] Figure 1 This is a structural exploded view of the through-wall kit in Example 1;

[0024] Figure 2 This is a structural assembly diagram of the through-wall kit in Example 1;

[0025] Figure 3 This is a schematic diagram of the sanitary flange pipe in Example 1;

[0026] Figure 4 This is a side view of the through-wall pipe in Example 1.

[0027] Reference numerals: 1. Through-wall pipe body; 2. Isolation disc; 21. First disc surface; 22. Second disc surface; 23. Stainless steel ring; 3. Sanitary flange pipe; 31. Interface end; 311. Positioning rib; 32. Flange end; 321. Locking tooth block; 4. Clamping component; 41. Hinge part; 42. Opening locking part; 43. Clamping area. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments, but these specific embodiments do not limit the scope of protection of the present invention in any way. Example

[0029] like Figure 1-4As shown, the through-wall pipe is a one-piece hollow tubular structure made of high-strength rubber or plastic material, forming a channel for material transfer along its axial direction. The through-wall pipe includes a through-wall pipe body 1 and an isolation disc 2. The isolation disc 2 is integrally formed at the middle of the through-wall pipe body 1 and extends perpendicular to the axial direction of the through-wall pipe body 1. The isolation disc 2 includes an integrally formed first disc surface 21 and a second disc surface 22. The first disc surface 21 has a larger diameter, while the second disc surface 22 has a relatively smaller diameter. A stainless steel ring 23 is fitted around the outer periphery of the second disc surface 22, tightly fitting to enhance structural strength and provide clamping support. The inner cavity of the through-wall pipe body 1 is open and has a smooth inner wall, suitable for use in clean or sterile environments.

[0030] The aforementioned sanitary flange pipe 3 is an integrally molded plastic cylindrical body that extends axially. The cylindrical body has an interface end 31 at one end for mating with a conveying pipe, and a flange end 32 at the other end. The interface end 31 has a disc-shaped structure, and its disc surface can fit against the first disc surface 21 of the through-wall pipe. The outer wall of the interface end 31 is provided with one or more positioning ribs 311, which extend circumferentially to enhance structural strength. Opposite to the interface end 31 is the flange end 32, which is disc-shaped and integrally formed at one axial end of the cylindrical body. Its disc surface is provided with multiple locking teeth 321 for screwing or locking with the isolator wall or other supporting components to ensure the sealing and stability of the connection. The inner cavity of the cylindrical body is open, forming a continuous flow channel for material conveying, and its inner wall is smooth.

[0031] The aforementioned clamping member 4 has an openable structure, comprising a hinge portion 41 and an opening locking portion 42. The hinge portion 41 is located on one side of the clamping member 4, allowing the clamping member 4 to be rotated open in the opening direction for easy installation and disassembly. The opening locking portion 42 is located on the other side of the clamping member 4 and is provided with a rotating threaded fastener for locking the clamping member 4 in the closed state. The interior of the clamping member 4 forms a clamping area 43, which has a circumferential structure and is used to clamp and fix the three-layer clamping mating area consisting of the sanitary flange pipe interface end 31, the first disc surface 21 of the through-wall pipe isolation disc 2, and the second disc surface 22 with a stainless steel ring 23.

[0032] The working principle and method of the through-wall kit of the closed isolator of this utility model are as follows:

[0033] In actual use, first, a mounting hole is pre-drilled in the wall of the isolator. Insert the through-wall pipe into the pre-drilled hole from one side of the wall, so that the through-wall pipe body 1 passes through the wall.

[0034] Specifically, when connecting the pipes, first open the clamp 4 through the hinge 41. Connect the interface end 31 of the sanitary flange pipe 3 to the through-wall pipe. At this time, the through-wall pipe will penetrate into the interior of the cylindrical body of the sanitary flange pipe 3. At the same time, the disc surface of the interface end 31 of the sanitary flange pipe 3, the first disc surface 21 of the through-wall pipe isolation disc 2, and the second disc surface 22 of the isolation disc 2 with the stainless steel ring 23 are sequentially fitted together to form a sandwich-style clamping mating area.

[0035] Subsequently, the opened clamping member 4 is fitted onto the outer periphery of the three-layer clamping mating area, so that the inner clamping area 43 of the clamping member 4 covers the entire clamping mating area. By rotating the threaded fastener of the opening locking part 42, the clamping member 4 is gradually tightened and locked. During the locking process, the clamping member 4 applies uniform axial pressure to the three-layer structure through the compression action of the trapezoidal groove, tightly pressing the sanitary flange pipe interface end 31, the first disc surface 21 of the through-wall pipe isolation disc 2, and the second disc surface 22 with the stainless steel ring 23 together, thereby achieving a reliable sealing connection.

[0036] Furthermore, the flange end 32 of the sanitary flange pipe 3 can be mated with the isolator wall, and a stable fixed connection can be achieved by the locking teeth 321 on the flange end 32 plate cooperating with the corresponding structure on the isolator.

[0037] When a connection needs to be established between two already assembled isolator chambers, this through-wall kit system can be installed at corresponding positions in the two chambers without compromising the airtightness of each chamber, thus enabling material transfer between the chambers. Similarly, when it is necessary to transfer materials from the outside of the isolator to the inside, the same connection method can be used to establish a sealed pipeline connection between the container (such as a stainless steel tank) outside the isolator and the inside of the isolator.

[0038] Furthermore, although the through-wall pipe is made of high-strength rubber or plastic materials, the design of the isolation disc 2, especially the stainless steel ring 23 on the outer periphery of the second disc surface 22, provides sufficient structural support, avoiding the deformation problem caused by the flexibility of the hose when it passes directly through the wall, ensuring that there are no gaps at the connection point, and preventing cross-flow of air between the two spaces.

[0039] When it is necessary to replace or maintain the pipeline, simply loosen the threaded fasteners of the clamp 4, open the clamp 4, and the three-layer structure can be easily separated to disassemble the sanitary flange pipe 3 or the through-wall pipe. The whole process does not require damaging the sealed environment of the isolator.

[0040] In addition, the inner cavity of the through-wall pipe remains sealed throughout the entire connection process. Specifically: before installation, the inner cavity of the through-wall pipe is sterilized, and its two ends can be temporarily sealed with sterile caps; during connection, the connection between the interface end 31 of the sanitary flange pipe 3 and the through-wall pipe is completed inside the isolator; the installation of the clamp 4 does not involve opening the inner cavity of the pipe; the entire process only involves external mechanical connection and does not damage the internal sterile channel.

[0041] In summary, the advantages of this utility model lie in its sandwich-style clamping structure. Through a three-layer fit design—the sanitary flange pipe interface end 31, the first disc surface 21 of the through-wall pipe isolation disc 2, and the second disc surface 22 with a stainless steel ring 23—combined with the clamping action of the clamping member 4, a fast and reliable pipe connection can be achieved while maintaining the isolator's airtightness. The stainless steel ring 23 provides necessary structural support for the high-strength rubber or plastic through-wall pipe, ensuring the stability of the connection.

[0042] On the other hand, since the sanitary flange pipe 3 of this utility model adopts a sanitary flange design that conforms to ASTM standards, the entire connection system has good versatility and interchangeability. The opening and closing design of the clamping component 4 makes installation and disassembly operations simple and quick, greatly improving maintenance efficiency.

[0043] Furthermore, the trapezoidal groove compression sealing technology fully meets the positive pressure environment requirements for isolators. All components are manufactured using a one-piece molding process, with smooth inner walls and no dead corners, meeting the stringent cleanliness and sterility requirements of fields such as biopharmaceutical and medical device production. The use of this invention effectively solves problems in existing technologies such as difficult isolator piping connections, poor sealing, and inability to operate in a closed environment, significantly improving production efficiency and product quality.

[0044] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any innovative improvements or substitutions based on this utility model should fall within the scope of the claims of this utility model. Furthermore, the parameters, materials, and processes mentioned in the above embodiments are not unique. Without departing from the technical essence of this utility model, those skilled in the art can make various alternative choices, and these alternative solutions should also be considered to fall within the scope of protection of this utility model.

Claims

1. A wall-penetrating kit for a closed isolator, characterized in that, include: The through-wall pipe is a hollow tubular structure formed in one piece, which runs through the axial direction. The through-wall pipe includes a through-wall pipe body and an isolation disc formed in one piece in the middle of the through-wall pipe body. The isolation disc is arranged perpendicular to the axial direction of the through-wall pipe body. The isolation disc has a first disc surface and a second disc surface arranged opposite to it. The diameter of the first disc surface is larger than the diameter of the second disc surface. A ring is sleeved on the outer periphery of the second disc surface. The sanitary flange pipe is a one-piece molded cylindrical body that extends axially. One end is a disc-shaped interface end, and the other end is a flange end. The interface end fits against the first disc surface of the through-wall pipe, and the through-wall pipe body extends into the interior of the cylindrical body. The clamping member has an openable structure, including a hinged part and an open locking part. The interior of the clamping member forms a circumferential clamping area that matches the outer periphery of the interface end, the first disk surface, and the second disk surface with an annulus.

2. The wall-penetrating kit of the enclosed isolator according to claim 1, characterized in that, The ring is a stainless steel ring that fits tightly around the outer periphery of the second disk.

3. The wall-penetrating kit of the enclosed isolator according to claim 1, characterized in that, The outer wall of the interface end of the sanitary flange pipe is provided with positioning ribs extending in the circumferential direction.

4. The wall-penetrating kit of the enclosed isolator according to claim 1, characterized in that, The flange end is disc-shaped and located at one axial end of the cylindrical body, with multiple locking teeth on its disc surface.

5. The wall-penetrating kit of the enclosed isolator according to claim 1, characterized in that, The hinge is located on one side of the clamping member, and the opening locking part is located on the other side of the clamping member. The opening locking part is provided with a rotating threaded fastener.

6. The wall-penetrating kit of the enclosed isolator according to claim 1, characterized in that, The clamping component has a trapezoidal groove structure inside.

7. The wall-penetrating kit of the enclosed isolator according to any one of claims 1-6, characterized in that, The through-wall pipe is made of flexible material.

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